read -p "Really publish host key to $KEYSERVER? (y/N) " OK; OK=${OK:=N}
if [ ${OK/y/Y} != 'Y' ] ; then
failure "key not published."
read -p "Really publish host key to $KEYSERVER? (y/N) " OK; OK=${OK:=N}
if [ ${OK/y/Y} != 'Y' ] ; then
failure "key not published."